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Home > Subjects > Mathematics > Level 1 > 1.2 Algebraic methods (AS91027) > Subject content > Substituting values into formulae

  • Subject: Mathematics
  • AS: 91027
  • Level: 1
  • Credits: 4
  • External

Mathematics 1.2 Apply algebraic procedures in solving problems

Substituting values into formulae

A formula is another word for a rule or equation that shows the relationship between different quantities. The plural of formula is formulae.

We can use formulae to work out values.

 e.g.   Use v = u + at to calculate v when u = 20, a = 10 and    
          t = 5      
          Answer: v   = 20 + 10 x 5
                            = 20 + 50
                            = 70

 e.g.   Use the formula C = algebraic formula
          to convert 320°F to degrees Celsius (°C)
Answer: C = algebraic formula = algebraic formula = 160°C

For more information and practice, see Formulae

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